Small size high isolation Wilkinson power splitter for 60 GHz wireless sensor network applications

This paper shows a very compact Wilkinson power splitter for high integrated millimeter wave systems. The approach, to reduce the component´s size, is based on the lumped component transformation for the lines. The simulation on the splitter structure shows a very wide band with 0.5 dB of maximum insertion loss and only 0.07 dB of maximum output amplitude imbalance. The input return loss is better than -21 dB within the whole band of interest (57 - 67 GHz) the output return loss is better than -21.5 dB for the same band. The isolation between the two outputs is better than -20 dB. The occupied area for the entire structure is around 0.0055mm².